Dissociation of iridium(III) phosphorescent emitters upon adsorption on Cu(110) revealed by scanning tunneling microscopy

H Gersen; R Schaub; W Xu; I Stensgaard; E Laegsgaard; TR Linderoth; F Besenbacher; MdK Nazeeruddin; M Graetzel

doi:10.1063/1.2424675

Dissociation of iridium(III) phosphorescent emitters upon adsorption on Cu(110) revealed by scanning tunneling microscopy

H Gersen, R Schaub, W Xu, I Stensgaard, E Laegsgaard, TR Linderoth, F Besenbacher, MdK Nazeeruddin, M Graetzel

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

9 Citations (Scopus)

Abstract

The phosphorescent emitters used in organic light emitting diodes (OLEDs) play a crucial role for tuning the color and the luminescence intensity. The authors have investigated by scanning tunneling microscopy the adsorption of iridium(III) phosphorescent emitter molecules used in OLEDs on a partly oxidized Cu(110) surface. Surprisingly they find that 50% of the emitters have dissociated upon adsorption at the substrate. The findings suggest that the decrease in the lifetime of OLEDs, which are manufactured by vacuum vaporization technique, is due to the dissociation of emitter molecules present in the device.

Translated title of the contribution	Dissociation of iridium(III) phosphorescent emitters upon adsorption on Cu(110) revealed by scanning tunneling microscopy
Original language	English
Pages (from-to)	264102/1 - 264102/4
Number of pages	3
Journal	Applied Physics Letters
Volume	89 (26)
DOIs	https://doi.org/10.1063/1.2424675
Publication status	Published - Dec 2006

Bibliographical note

Publisher: American Institute of Physics

Access to Document

10.1063/1.2424675

Handle.net

Persistent link

Cite this

@article{0f303bd0521a4bc3a88cc391e40f2a34,

title = "Dissociation of iridium(III) phosphorescent emitters upon adsorption on Cu(110) revealed by scanning tunneling microscopy",

abstract = "The phosphorescent emitters used in organic light emitting diodes (OLEDs) play a crucial role for tuning the color and the luminescence intensity. The authors have investigated by scanning tunneling microscopy the adsorption of iridium(III) phosphorescent emitter molecules used in OLEDs on a partly oxidized Cu(110) surface. Surprisingly they find that 50% of the emitters have dissociated upon adsorption at the substrate. The findings suggest that the decrease in the lifetime of OLEDs, which are manufactured by vacuum vaporization technique, is due to the dissociation of emitter molecules present in the device.",

author = "H Gersen and R Schaub and W Xu and I Stensgaard and E Laegsgaard and TR Linderoth and F Besenbacher and MdK Nazeeruddin and M Graetzel",

note = "Publisher: American Institute of Physics",

year = "2006",

month = dec,

doi = "10.1063/1.2424675",

language = "English",

volume = "89 (26)",

pages = "264102/1 -- 264102/4",

journal = "Applied Physics Letters",

issn = "1077-3118",

publisher = "American Institute of Physics (AIP)",

}

TY - JOUR

T1 - Dissociation of iridium(III) phosphorescent emitters upon adsorption on Cu(110) revealed by scanning tunneling microscopy

AU - Gersen, H

AU - Schaub, R

AU - Xu, W

AU - Stensgaard, I

AU - Laegsgaard, E

AU - Linderoth, TR

AU - Besenbacher, F

AU - Nazeeruddin, MdK

AU - Graetzel, M

N1 - Publisher: American Institute of Physics

PY - 2006/12

Y1 - 2006/12

N2 - The phosphorescent emitters used in organic light emitting diodes (OLEDs) play a crucial role for tuning the color and the luminescence intensity. The authors have investigated by scanning tunneling microscopy the adsorption of iridium(III) phosphorescent emitter molecules used in OLEDs on a partly oxidized Cu(110) surface. Surprisingly they find that 50% of the emitters have dissociated upon adsorption at the substrate. The findings suggest that the decrease in the lifetime of OLEDs, which are manufactured by vacuum vaporization technique, is due to the dissociation of emitter molecules present in the device.

AB - The phosphorescent emitters used in organic light emitting diodes (OLEDs) play a crucial role for tuning the color and the luminescence intensity. The authors have investigated by scanning tunneling microscopy the adsorption of iridium(III) phosphorescent emitter molecules used in OLEDs on a partly oxidized Cu(110) surface. Surprisingly they find that 50% of the emitters have dissociated upon adsorption at the substrate. The findings suggest that the decrease in the lifetime of OLEDs, which are manufactured by vacuum vaporization technique, is due to the dissociation of emitter molecules present in the device.

U2 - 10.1063/1.2424675

DO - 10.1063/1.2424675

M3 - Article (Academic Journal)

SN - 1077-3118

VL - 89 (26)

SP - 264102/1 - 264102/4

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Dissociation of iridium(III) phosphorescent emitters upon adsorption on Cu(110) revealed by scanning tunneling microscopy

Abstract

Bibliographical note

Access to Document

Handle.net

Fingerprint

Cite this